Paul Thurrott recently wrote an article about Microsoft’s Windows Phone 7’s update problems and mentions that, “Mango will be finalized by the end of 2011, and while Microsoft recently promised to ship this release to customers by the end of the year as well, my sources tell me that schedule is a near impossibility.” Does that sound likely to you? Microsoft can’t afford to push back their next major update. Maybe some features they were hoping to add might not make it into the final release, but we have no idea what those features include other than what was announced at MWC. The features we know are coming are the fast task switching interface and Internet Explorer 9 with HTML5 support, which was actually functionally demonstrated at MWC last month.

Do you think Thurrott’s sources are reliable and Microsoft won’t be able to pull off the major Mango update this year?